PS-C16-5: RENIN-ANGIOTENSIN-ALDOSTERONE SYSTEM INHIBITORS AND CLINICAL OUTCOMES IN COVID-19 PATIENTS WITH HYPERTENSION:A REPORT OF THREE PEAK WAVE PERIODS IN SEMARANG, INDONESIA

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Objective: We aimed to assess the association between RAAS inhibitors (ACEi or ARB) and the clinical outcomes of COVID-19 patients with hypertension in the First Wave, Second Wave and Third Wave at Secondary Referral Hospital, Indonesia Methods: This cross sectional study was based on an electronic medical record in the Dr Adhyatma MPH Tugurejo General Hospital, Semarang, Indonesia. All patients more than 18 years old who confirmed COVID-19 case in the first wave (November 2020 to January 2021), second wave (May 2021 to July 2021) and third wave (January 2022 to February 2022) were included in this study. Data about demographic, comorbidities, features of antihypertensive drugs and clinical outcomes were collected. The clinical outcomes included mortality and prolonged hospitalization (length of stay (LOS) > 10 days). The statistical measures calculated were Chi square test and Fischer's exact test. Results: From three periods of peak wave, data from 1560 COVID-19 patients was collected in the first wave (304;19.5%), the second wave (1038;66.5%), and the third wave (218;14.0%). Subjects were dominated by males (50.4%) and a median of age 50 (19 -91) years old. The common comorbidities in studies were diabetes mellitus with 318 (20.4%) and hypertension with 254 (16.3%). In the main analysis, 99 (39%) patients with hypertension receiving RAAS inhibitors were compared with 155 (61%) patients receiving other antihypertensive drugs. Our results showed that RAAS inhibitors was not associated with a higher risk of COVID-19 mortality (RR:1.01; 95% CI: 0.61–1.67; p:0.969) or prolonged LOS (RR:0.86; 95%CI: 0.60–1.26; p:0.408). Conclusions: In COVID-19 patients with hypertension, the use of RAAS inhibitors showed no increased mortality or prolonged LOS compared to patients without RAAS inhibitors. COVID-19 patients and patients exposed to the COVID-19 pandemic should not discontinue ACEi or ARBs.